Pipe-support for flues



Patented Aug.22-, 1882 aka/Ix I had. 24%

UNITED STAT S PATENT OFFICE.

NATHAN U. WALKER, OF VVALKERS, OHIO.

PIPE-SUPPORT FOR FLUES, CHIMNEYS, 80C.

SPECIFICATION forming part of Letters Patent No. 263,002, dated August22, 1882.

Application filed March 17,1882. (No model.)

To all whom it may concern:

Be it known that I, NATHAN U. WALKER, of Walkers P. 0., in the county ofColumbiana and State of Ohio, have invented a new and useful Improvementin Pipe-Supports for Flues, Chimneys, &c.; and I do hereby declare thefollowing to be a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, forming a part of thisspecification, in which Figure 1 is a plan view of one form of myimproved flue-support. Figs. 2 and 3 show how the support sustains theflue-pipe. Fig.

4 shows the support placed in the floor and the flue-pipe in it. Fig. 5is a perspective view of the form shown by Fig. 1. Fig. 6 is a view ofthe support made in one piece.

Like letters of reference indicate like parts in each.

Myinvention relates to devices for supporting flue-sections. ofterra-cotta and like pipe employed in constrnotin g chimneys where thesame pass through walls, floors, roof, or like parts of a building, andhas for its object such a construction of the support as shallthoroughly protect the woodwork from fire in case the flue shall be orbecome defective; and to this end it consists in a flue-block of refiactory material-such as terra-cotta-.-said block having a centralflue-opening for the passage of the flue-pipe and an annular beveledseat for the reception of a swell or collar on the pipe, and

. also in details of construction, all as will hereinafter more fullyappear.

I will now describe my invention, so that others skilled in the art maymanufacture and use the same.

I prefer to form my fire-proof support of terra-cotta, formed and bakedin the usual manner, in the shape of a ring or block, a, of sufficientwidth and thickness to protect the wood work from sparks and heat,having an opening, I), in the center to allow the terra-cotta pipe to beextended through it. This block is set in the wall, floor, or root ofthe building, and is supported thereby, while the terra-cotta pipe,extending through the opening b in the block, is supported by a collaror ring, d, formedon the outside of the pipe, resting in a seat, bevel,or recess, 6, formed in the block. This block may be made in one piece,as shown in Fig. 6;

or it may be formed in two or more sections,

a ed, as shown in.Fig. 1. In the latter case there may be anotherrecess, 6, in the side of the opening I), which engages with anotherrin-g, bowl, collar, or flange, k, on the outside of the pipe, andthereby gives additional support to the pipe. Where the support isformed of two or more sections, notches lare formed on the corners ofthe same, so that they may be firmly secured around the pipe by a wireor rope twisted around the sections or passing through holes formed inthe sections. Passing through the block are holes ml, which affordventilation and also prevent the support from becoming heated.

In erecting the chimney the support a is set in the walls, floors, androof of the building between the joints or otherwise, and the terracottapipe is inserted or placed in the same.

The lower section of pipe 11. is called a dropbottom, and is closed atits lower end, while there is an opening, 0, in the side of the pipe,where connection is made with .the metal pipe formed from the stove. Inthe lower portion. of the drop-bottom may be, if desired, an opening,p,having dovetailed flanges p on the sides of the same, in which is asliding door, q, formed of metal or other suitable material. Throughthis opening the soot and dirt may be readily removed without taking thechimney apart.

The advantages of my in ventlon are that the chimney is much more firmlysupported than heretofore, and that the danger of fire beingcommunicated to the wood-work of the building is removed.

Although I have described my improved fireproof pipe-support as formedof terra-cotta, which is the most suitable material, owing to its beinga poor conductor of heat and for many other reasons, yetI do not desireto limit my claims to this material alone.

I do not herein claim a drop-bottom pipe provided with a sliding door.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. A flue-support consisting of a block of refra'ctory material having acentral flue-opening and an annular beveled seat for the reception of aswell or collar on the flue-pipe, substan- I tially as and for thepurpose specified.

2. The terra-cotta or other flue-support composed of two sections, andprovided With a central hole or opening, in the sides of which is anannular groove for the reception of the ring or collar of the pipe orflue, substantially as and for the purposes described.

3. A flue-support composed of longitudinal sections having a centralopening for the passage of the flue-pipe and longitudinal air-passages,substantially as'and for the purpose specified.

4. A flue-support composed of longitudinal sections having a centralflue-opening for the 15 passage of the flue-pipe and notches for thewire or hand, whereby the sections are secured together, substantiallyas and for the purpose specified.

In testimony whereof I have hereunto set 20 my hand this 13th day ofMarch A. D. 1882.

NATHAN U. WALKER.

